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v3.23.1

Stock Incentive Plans - Stock options (Details) - Stock options - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022
Shares |  |  |
Outstanding, beginning of year (in shares) | 2,253,431 |  |
Granted (in shares) | 474,250 |  |
Exercised (in shares) | (22,472) | 0 |
Cancelled or forfeited (in shares) | (142,975) |  |
Outstanding, end of year (in shares) | 2,562,234 |  | 2,253,431
Vested and exercisable (in shares) | 835,970 |  |
Vested and expected to vest (in shares) | 2,562,234 |  |
Weighted-Average Exercise Price |  |  |
Outstanding, beginning of year (in dollars per share) | $ 15.43 |  |
Granted (in dollars per share) | 13.35 |  |
Exercised (in dollars per share) | 1.65 |  |
Cancelled or forfeited (in dollars per share) | 13.52 |  |
Outstanding at end of year (in dollars per share) | 15.27 |  | $ 15.43
Vested and exercisable at end of year (in dollars per share) | 23.94 |  |
Vested and expected to vest at end of the year (in dollars per share) | $ 15.27 |  |
Weighted Average Remaining Contractual Term (years) |  |  |
Outstanding | 8 years 6 months 25 days |  | 8 years 6 months 25 days
Vested and exercisable | 7 years 10 months 13 days |  |
Vested and expected to vest | 8 years 6 months 25 days |  |
Aggregate Intrinsic Value |  |  |
Outstanding | $ 7,370,000 |  | $ 9,733,000
Vested and exercisable | 1,468,000 |  |
Vested and expected to vest | $ 7,370,000 |  |
Stock Incentive Plans |  |  |
Number of options exercised (in shares) | 22,472 | 0 |
Intrinsic value of options exercised | $ 300,000 |  |
Aggregate fair value of options vested | $ 1,500,000 | $ 600,000 |
Weighted average grant date fair value of options granted (in dollars per share) | $ 8.49 | $ 4.05 |
Unrecognized compensation expense related to unvested stock option awards | $ 11,200,000 |  |
Weighted-average amortization period over which cost is expected to be recognized | 2 years 7 months 6 days |  |

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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of cost to be recognized for option under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(03) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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